When Neil Armstrong stepped onto the moon in 1969, America went down in popular history as the winner of the space race. But that history is bunk. The real pioneers of space exploration were the Soviet cosmonauts.

Astronomer Carl Sagan leads us on an engaging guided tour of the universe, bringing such topics as Einstein\\\'s theory of relativity and Darwin\\\'s theory of evolution down to a layman\\\'s level of understanding. The first episode opens with a description of the cosmos and introduces the iconic \\\'Spaceship of the Imagination\\\'

Series showing how new camera technology is revealing the inner workings of the Earth's most spectacular natural wonders

Since he was a teenager, Dara O Briain has been fascinated with professor Stephen Hawking, the world's most celebrated scientist. In this special film, Dara spends time with his boyhood hero as he attends the world premiere of The Theory of Everything, the movie made about his life, and then at Professor Hawking's home and place of work in Cambridge.

Andrew Marr explores how Darwin's theory of evolution by natural selection has taken on a life of its own far beyond the world of science

In the first episode of the three-part series, Andrew Marr explores how Darwin\'s theory of evolution by natural selection has taken on a life of its own far beyond the world of science.

Andrew Marr discovers something surprising about his own evolutionary history as this epic series continues with an exploration of Darwin\'s impact on politics and society.

In the final episode of this ground-breaking series about Charles Darwin\'s legacy, Andrew Marr discovers how Darwin\'s ideas are helping us to save ourselves and all life on earth from extinction.

Documentary telling the little-known story of how Darwin came to write his great masterpiece, On the Origin of Species, a book which explains the wonderful variety of the natural world as emerging out of death and the struggle of life.

In September 1991 two hikers made a sensational discovery - a frozen body high in the mountains, near the border between Austria and Italy.

It's a voyage of exploration like no other - to Titan, Saturn's largest moon and thought to resemble our own early Earth. For a small team of British scientists this would be the culmination of a lifetime's endeavour - the flight alone, some 2 billion miles, would take a full seven years. This is the story of the space probe they built, the sacrifices they made and their hopes for the landing.

This is the story of the most extraordinary journey in human exploration, the Voyager space mission. In 1977 two unmanned spacecraft were launched by NASA, heading for distant worlds. It would be the first time any man-made object would ever visit the farthest planets of the solar system - Jupiter, Saturn, Neptune and Uranus. On the way the Voyagers would be bombarded by space dust, fried by radiation and discover many of the remarkable wonders of the solar system.

In a purpose-built dissection lab, Dr George McGavin is joined by leading anatomy experts to dissect a real foot, taking it apart layer by layer to reveal what makes it unique in the animal kingdom.

In a purpose-built dissection lab, Dr George McGavin is joined by leading anatomy experts to dissect a real hand, taking it apart layer by layer to reveal what makes it unique in the animal kingdom.

The moon is such a familiar presence in the sky that most of us take it for granted. But what if it wasn't where it is now? How would that affect life on earth?

Documentary following endangered species fighting for their survival. David, a chimpanzee in Senegal, tries to overcome threats to his leadership and ensure an heir.

Documentary following endangered species fighting for their survival. A colony of emperor penguins try to keep themselves and their chicks alive through the winter.

Documentary following endangered species fighting for their survival. The lioness leader of a once mighty pride must now battle for their very survival.

Documentary following endangered species fighting for their survival. A painted wolf matriarch's feud with her daughter threatens to bring the dynasty down.

Documentary following endangered species fighting for their survival. A tigress must protect her cubs while battling rivals who want to steal her lands and overthrow her.

The air around us is not just empty space; it is an integral part of the chemistry of life. Plants are made from carbon dioxide, nitrogen nourishes the soil and oxygen gives us the energy we need to keep our hearts pumping and our brains alive. But how did we come to understand what air is made of? How did we come to know that this invisible stuff around us contains anything at all?

Mark Miodownik reveals the amazing stories behind everyday objects of desire and how they are miraculously transformed from raw materials into the very stuff of the modern world.

Professor Mark Miodownik concludes his odyssey of the stuff of modern life. This time he looks at how materials have enabled us to indulge our curiosity about the world around us.

Professor Jim Al-Khalili sets out to discover what the universe might actually look like.

The second part, Nothing, explores science at the very limits of human perception, where we now understand the deepest mysteries of the universe lie. Jim sets out to answer one very simple question - what is nothing?

Engineer Jem Stansfield is used to creating explosions, but in this programme he uncovers the story of how we have learnt to control them and harness their power for our own means.

Dallas Campbell delves in to the Horizon archive to discover how our ideas about dinosaurs have changed over the past 40 years.

In this film, Professor Marcus du Sautoy explores one of the most dramatic scientific announcements for a generation. In clear, simple language he tells the story of the science we thought we knew, how it is being challenged, and why it matters.

Five of the world's top scientists present the revolutionary scientific inventions they believe could stop global warming and prevent worldwide disaster. Ideas include putting a giant glass sunshade in space to deflect a small portion of the sun's rays back into space and the firing ofrockets loaded with tons of sulphur into the stratosphere creating a vast, but very thin sunscreen of sulphur around the earth

In this episode Brian uncovers how the stunning diversity of shapes in the natural world are shadows of the rules that govern the universe. In Spain he shows how an attempt by hundreds of people to build the highest human tower reveals the force that shapes our planet.